could apostatise
Regular verb: apostatise - apostatised- apostatised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could apostatise
you could apostatise
he could apostatise
we could apostatise
you could apostatise
they could apostatise 	I could be apostatising
you could be apostatising
he could be apostatising
we could be apostatising
you could be apostatising
they could be apostatising	I could have apostatised
you could have apostatised
he could have apostatised
we could have apostatised
you could have apostatised
they could have apostatised	I could have been apostatising
you could have been apostatising
he could have been apostatising
we could have been apostatising
you could have been apostatising
they could have been apostatising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not apostatise
you could not apostatise
he could not apostatise
we could not apostatise
you could not apostatise
they could not apostatise 	I could not be apostatising
you could not be apostatising
he could not be apostatising
we could not be apostatising
you could not be apostatising
they could not be apostatising	I could not have apostatised
you could not have apostatised
he could not have apostatised
we could not have apostatised
you could not have apostatised
they could not have apostatised	I could not have been apostatising
you could not have been apostatising
he could not have been apostatising
we could not have been apostatising
you could not have been apostatising
they could not have been apostatising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I apostatise?
could you apostatise?
could he apostatise?
could we apostatise?
could you apostatise?
could they apostatise? 	could I be apostatising?
could you be apostatising?
could he be apostatising?
could we be apostatising?
could you be apostatising?
could they be apostatising? 	could I have apostatised?
could you have apostatised?
could he have apostatised?
could we have apostatised?
could you have apostatised?
could they have apostatised? 	could I have been apostatising?
could you have been apostatising?
could he have been apostatising?
could we have been apostatising?
could you have been apostatising?
could they have been apostatising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not apostatise?
could you not apostatise?
could he not apostatise?
could we not apostatise?
could you not apostatise?
could they not apostatise? 	could I not be apostatising?
could you not be apostatising?
could he not be apostatising?
could we not be apostatising?
could you not be apostatising?
could they not be apostatising? 	could I not have apostatised?
could you not have apostatised?
could he not have apostatised?
could we not have apostatised?
could you not have apostatised?
could they not have apostatised? 	could I not have been apostatising?
could you not have been apostatising?
could he not have been apostatising?
could we not have been apostatising?
could you not have been apostatising?
could they not have been apostatising?